3281128 has 8 divisors (see below), whose sum is σ = 6152130. Its totient is φ = 1640560.

The previous prime is 3281101. The next prime is 3281137. The reversal of 3281128 is 8211823.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 315844 = 1722^2 + 562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205063 + ... + 205078.

Almost surely, 2^3281128 is an apocalyptic number.

It is an amenable number.

3281128 is a deficient number, since it is larger than the sum of its proper divisors (2871002).

3281128 is a wasteful number, since it uses less digits than its factorization.

3281128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410147 (or 410143 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 3281128 is about 1811.3884177614. The cubic root of 3281128 is about 148.5962071239.

The spelling of 3281128 in words is "three million, two hundred eighty-one thousand, one hundred twenty-eight".